_______ the moon moves round the earth is well known to all of us.
A
本题的考点是：That引导的主语从句，注意that引导的主语从句在句中只起到连接作用，没有意义，也不做任何成分。
Thegroupismadeupoflocal___(music)whohavebeenperformingtogetherforseveralyears.
Peopletodayarehighlyconcernedaboutthequalityoftheairthey___(breath).
Iwouldverymuch______tovisitsomeoftheplacesthatIhavebeenreadingabout.
Nowthatyouknowallthefacts，youcanmakeaninformed___(choose).
Thereisnopoint______takingFrenchlessonsifyoudontwanttolearnthelanguage.